Cheap flights from Barcelona to Seattle from $406
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Barcelona to Seattle departing on 9/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Barcelona to Seattle
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Seattle?
In general, March is the cheapest month to fly from Barcelona to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $708. If you don’t want to visit Seattle in March, then you should wait until November to fly from Barcelona, when ticket prices are also cheap, with an average price of $738.
What is the cheapest day to depart on your flight to Seattle?
On average, the least expensive day to fly to Seattle from Barcelona is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $784. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Barcelona because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,377.
What is the cheapest time of day to depart on your flight to Seattle?
Flying to Seattle from Barcelona in the morning is the least expensive time of day to depart. momondo users have found prices as low as $877 when looking at flights departing in the morning. Flights to Seattle are more costly at noon, with an average ticket price of $1,226. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Seattle?
You are more likely to see cheaper flights to Seattle from Barcelona when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $860 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Barcelona for as low as $762 on momondo.
What is the cheapest airline that flies from Barcelona to Seattle/Tacoma Intl?
Aer Lingus, TAP AIR PORTUGAL, and WestJet are the most popular carriers operating from Barcelona to Seattle/Tacoma Intl
What airlines fly to Seattle?
British Airways, Delta and KLM are the top three most popular airlines that fly to Seattle from Barcelona according to our data. British Airways is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 4 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.
Cheap Barcelona to Seattle flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Barcelona to Seattle
How far is Barcelona to Seattle/Tacoma Intl by plane?
The straight-line distance from Barcelona to Seattle/Tacoma Intl is 5410.7 mi. In terms of flight time, this usually takes a little over 13h 55m.
When did momondo last update prices for flights from Barcelona to Seattle/Tacoma Intl Airport?
Prices for flights from Barcelona to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Barcelona to Seattle/Tacoma Intl Airport?
As of July 2025, there are 4 operators available to choose from for flights from Barcelona to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Barcelona to Seattle/Tacoma Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Barcelona to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
Best airlines flying from Barcelona to Seattle
Compare and see reviews for airlines that fly from Barcelona to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $677 | Free Cancellation | Rating 7.8 1,368 reviews | |||
| PriceFrom $686 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $753 | Free Cancellation | Rating 7.5 1,467 reviews | |||
| PriceFrom $771 | Free Cancellation | Rating 6.6 7,095 reviews |
Traveling to a place near Seattle?
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Why should I use momondo to find a flight deal from Barcelona to Seattle?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Barcelona to Seattle for you.
Can I find flights from Barcelona to Seattle with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Seattle from Barcelona with this policy.
How can momondo help me find flights from Barcelona to Seattle?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Barcelona to Seattle.
I’m not ready to book a flight from Barcelona to Seattle right now. Can momondo alert me if prices change?
Price alerts on flights to Seattle from Barcelona are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.